Home / 145,480.43-200,732.89-85,039.38

Finding the Fourth Proportional to 145,480.43, 200,732.89 and 85,039.38

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Solution

The fourth proportional to 145,480.43, 200,732.89 and 85,039.38 is: 117,336.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,480.43 : 200,732.89 = 85,039.38 : x
  2. Step 2: Convert to fraction form
    145,480.43/200,732.89 = 85,039.38/x
  3. Step 3: Cross multiply
    145,480.43x = 200,732.89 × 85,039.38
  4. Step 4: Simplify right side
    145,480.43x = 17,070,200,458.06
  5. Step 5: Solve for x
    x = 17,070,200,458.06/145,480.43
  6. Step 6: Final answer
    x = 117,336.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.